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onsemi NCV7808ABD2TR4G
- Part No.:
- NCV7808ABD2TR4G
- Manufacturer:
- onsemi
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
NCV7808ABD2TR4G.pdf
- Description:
- IC REG LINEAR 8V 1A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:2,271
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Product details
Overview
NCV7808ABD2TR4G from onsemi is an automotive-grade, fixed-output +8.0 V linear voltage regulator delivering up to 1.0 A output current with internal thermal shutdown, short-circuit current limiting, and safe-area compensation. It operates with input voltages from 10.6 V to 25 V and maintains ±2% output voltage tolerance over temperature and load, making it suitable for engine control units, body electronics, and infotainment power rails.
For engineers reviewing the NCV7808ABD2TR4G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, D2PAK-3 surface-mount package, dropout voltage of 2.0 V at 1.0 A, ripple rejection of 56 dB (120 Hz), and guaranteed operation from −40°C to +150°C junction temperature.
Technical Context
The NCV7808ABD2TR4G implements a monolithic series-pass transistor architecture with integrated protection circuitry: thermal overload detection triggers shutdown before junction temperature exceeds +150°C, while short-circuit current limiting holds peak output current to 0.2 A under fault conditions. Safe-area compensation dynamically reduces short-circuit current as pass transistor VCE increases, preventing second breakdown.
It requires no external components for basic regulation but benefits from a 0.33 µF input bypass capacitor when located >2 cm from bulk filtering. Output stability is independent of output capacitance, though ≥0.1 µF improves transient response. Quiescent current remains ≤6.0 mA across full input range and load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | +8.0 V nominal, ±2% tolerance (7.84–8.16 V at 25°C), maintained over 5 mA–1.0 A load and −40°C to +125°C |
| Output Current | 1.0 A continuous (with adequate heatsinking); peak 2.2 A for short durations |
| Dropout Voltage | 2.0 V at 1.0 A and 25°C - defines minimum input headroom required for regulation |
| Ripple Rejection | 56 dB at 120 Hz and 500 mA - suppresses AC ripple from upstream switching supplies |
| Quiescent Current | 3.3–6.0 mA - enables low-power standby modes without compromising regulation accuracy |
| Thermal Protection | Automatic shutdown at +150°C junction temperature, auto-recovery after cooldown |
| AEC-Q100 Grade | Grade 1 (−40°C to +125°C ambient) - qualified for automotive powertrain and chassis systems |
Pinout & Package
D2PAK-3 (TO-263-3) surface-mount package with exposed thermal pad connected to Pin 2 (Ground). Heatsink surface must be electrically tied to ground plane for optimal thermal performance (RJC = 5.0°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Input | Unregulated DC input (10.6–25 V); requires 0.33 µF bypass capacitor near pin for high-frequency stability |
| Pin 2 | Ground | Common reference for input, output, and internal circuitry; also connects to exposed thermal pad |
| Pin 3 | Output | Regulated +8.0 V supply; stable without output capacitor but benefits from ≥0.1 µF for load transients |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 compliant - validated for under-hood and cabin applications per automotive reliability standards |
| Internal protection | Thermal shutdown + short-circuit current limit + safe-area compensation - eliminates need for external fault management circuitry |
| No external components | Stable operation with only optional input bypass capacitor - reduces BOM count and PCB area in space-constrained modules |
| Low noise output | 10 µV/V output noise (10 Hz–100 kHz) - suitable for analog sensor interfaces and audio subsystems |
| Pb-free construction | RoHS-compliant packaging - meets global environmental compliance requirements without derating |
Applications
| Engine Control Unit (ECU) Power Rail | Body Control Module (BCM) Sensor Supply |
|---|---|
|
Use Scenario: Provides clean +8.0 V bias to microcontroller I/O peripherals and CAN transceivers in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Primary local regulator for digital logic and communication interfaces requiring stable voltage under wide input transients (load dump, cold crank). Use Value: Maintains regulation during 24 V load-dump spikes (up to 35 V input) and survives −40°C cold-start conditions without brownout. |
Use Scenario: Powers Hall-effect position sensors and LIN transceivers in door modules and seat controllers. IC Role / Device Role / Timing Role: Low-noise, fault-protected supply for precision analog front-ends and serial bus interfaces. Use Value: 10 µV/V noise floor prevents signal corruption in millivolt-level sensor outputs; short-circuit immunity avoids system reset during wiring faults. |
| Infotainment System Audio Amplifier Bias | Advanced Driver Assistance Systems (ADAS) Camera Module |
|
Use Scenario: Supplies auxiliary bias to Class AB audio amplifier stages in head units and display audio subsystems. IC Role / Device Role / Timing Role: Local post-regulator stabilizing switched-mode supply output for low-distortion analog amplification. Use Value: 56 dB ripple rejection attenuates 120 Hz switching artifacts from upstream DC/DC converters, reducing audible hum. |
Use Scenario: Delivers regulated +8.0 V to image sensor bias circuits and ISP power domains in surround-view camera ECUs. IC Role / Device Role / Timing Role: High-reliability, thermally robust supply for vision processing subsystems operating in high-ambient environments. Use Value: +150°C junction rating enables operation behind vehicle grilles or near exhaust routing without derating or forced cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC7808ABD2TR4G | Commercial-grade version; same electrical specs but rated for 0°C to +125°C TJ, no AEC-Q100 qualification | Suitable for industrial or consumer applications where automotive reliability testing is not required | Select when cost sensitivity outweighs automotive qualification needs and ambient temperature stays above 0°C |
| NCV7808BD2TR4G | Same AEC-Q100 Grade 1 qualification, but ±4% output tolerance (7.6–8.4 V) instead of ±2% | Acceptable for non-critical loads like LED drivers or fan controls where tighter regulation is unnecessary | Choose for cost-optimized automotive designs where 4% output variation is acceptable and thermal margin is ample |
Compared with NCV7808ABD2TR4G, MC7808ABD2TR4G lacks automotive qualification and extended temperature support, while NCV7808BD2TR4G trades tighter voltage tolerance for lower unit cost - making the NCV7808ABD2TR4G optimal for safety-critical 8 V rails demanding both precision and AEC-Q100 compliance.
Availability
NCV7808ABD2TR4G is available at Aetrix Electronics and suitable for engine control units, body electronics modules, and infotainment systems requiring stable component supply with automotive-grade traceability and long-term lifecycle support.
Supply support for NCV7808ABD2TR4G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi is a global semiconductor supplier focused on energy-efficient innovation for automotive, industrial, cloud, and IoT applications.
The NCV7800 series is designed specifically for automotive power management, delivering robust, drop-in replacement capability for legacy 78xx regulators while meeting stringent AEC-Q100 reliability and thermal requirements.
FAQ
What is the maximum input voltage rating for the NCV7808ABD2TR4G?
The NCV7808ABD2TR4G has an absolute maximum input voltage of 40 Vdc, as specified in the Maximum Ratings table. However, for reliable continuous operation, the recommended maximum input is 25 Vdc - exceeding this risks thermal overload due to power dissipation (PD = (VIN − 8.0 V) × IOUT). The device survives automotive load-dump transients up to 35 V for <100 ms per ISO 7637-2.
Does the NCV7808ABD2TR4G require an output capacitor for stability?
No, the NCV7808ABD2TR4G is internally compensated and remains stable without an output capacitor. However, adding ≥0.1 µF ceramic or tantalum capacitor at the output significantly improves transient response to fast load steps - especially critical in microcontroller or sensor applications. The datasheet explicitly states "CO is not needed for stability" but recommends it for dynamic performance.
How does the thermal shutdown mechanism work in the NCV7808ABD2TR4G?
The NCV7808ABD2TR4G integrates a thermal sensing circuit that monitors junction temperature. When TJ reaches +150°C, the output is disabled to prevent damage. Once the die cools below approximately +135°C, regulation automatically resumes - no external reset or power cycle is needed. This hysteresis prevents oscillation near the trip point and ensures safe recovery under sustained overload.
Can the NCV7808ABD2TR4G be used in adjustable-voltage configurations?
Yes - although optimized as a fixed +8.0 V regulator, the NCV7808ABD2TR4G can be configured as an adjustable regulator using external resistors, as demonstrated in Figure 10 of the datasheet. Its internal reference and error amplifier allow output voltages higher than 8.0 V, but accuracy and line/load regulation degrade compared to fixed-mode operation due to resistor tolerance and temperature drift.
What is the significance of the 'NCV' prefix in NCV7808ABD2TR4G?
The 'NCV' prefix denotes onsemi's automotive-grade product family, indicating full AEC-Q100 qualification (Grade 1), PPAP capability, and controlled manufacturing with enhanced traceability and change management. It signifies that the NCV7808ABD2TR4G undergoes additional stress testing, lot traceability, and process controls beyond commercial-grade equivalents like MC7808ABD2TR4G.
NCV7808ABD2TR4G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 35V
- Voltage - Output (Min/Fixed):
- 8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 2V @ 1A (Typ)
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 6 mA
- Current - Supply (Max):
- -
- PSRR:
- 62dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK-3
NCV7808ABD2TR4G FAQ
1.How can I place an order for NCV7808ABD2TR4G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV7808ABD2TR4G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for NCV7808ABD2TR4G reliable?
The price and inventory of NCV7808ABD2TR4G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV7808ABD2TR4G is usually 5 days.
3.What payment methods are accepted for NCV7808ABD2TR4G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV7808ABD2TR4G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV7808ABD2TR4G?
NCV7808ABD2TR4G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV7808ABD2TR4G order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for NCV7808ABD2TR4G?
For technical support, including NCV7808ABD2TR4G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV7808ABD2TR4G requirements.
6.How does Aetrix verify that NCV7808ABD2TR4G is sourced from the original manufacturer or authorized distributors?
All NCV7808ABD2TR4G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that NCV7808ABD2TR4G meets industry standards.
7.What is the process for return or replacement of NCV7808ABD2TR4G?
All NCV7808ABD2TR4G units undergo pre-shipment inspection (PSI). If there is an issue with NCV7808ABD2TR4G, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The NCV7808ABD2TR4G part is unused and in its original packaging.
Return procedure for NCV7808ABD2TR4G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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